Multiple motor.



jatented April L5, 1904i;

PATENT OFFICE.

HERMAN W. MARTIN, OF ILION, NEW YORK.

` MULTIPLE MOTOR.

SPECIFICATION forming part of Letters Patent No. 756,513, dated April 5,1904.

Application filed March 2, 1903. Serial No. 145,729. (Nc model.)

To a/ZZ whom t `may concern:

Be it known that I, HERMAN W. MARTIN, residing at Ilion, in the countyof Herkimer and State of New York, have invented certain new and usefulImprovements in MultipleV Motors, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to a multiple motor for the use of gasolene and thelike; and I do declare that the following is a full, clear, concise',and exact description thereof, sufficient to enable one skilled in theart to make and use the same, reference being had to the accompanyingdrawings, in which like letters refer to like parts throughout.

My invention includes the arrangement of cylinders and operating partsconnected therewith in juxtaposition and in their attachment to one mainshaft or transmission device employing few parts in a simpleconstruction and arrangement which permitsA ready access for repairingand adjusting the same, but at the same time produces a structure whichhas an advantage in power and.

steadiness in operation, together with other features.

My object is to produce a simple, cheap, compact, durable, and powerfulengine with parts of simple and cheap construction so connected as to bereadily adjustable and detachable for cleaning, replacing', or repair,one that is also of peculiar steadiness and smoothness in its operationand in which the length of travel in the pistons may be adjusted to thebest advantage or the intermediate space be made different in thedifferent cylinders, also in which the moving parts are steadied andsupported in their operation by their close connection with and supportand bearing upon the main castings of the engine.

In the drawings, Figure'l is a side view of my engine, and Fig. 2 is anend view. Figs. 3 and 4 are the top and bottom parts of a casing which Iprovide to inclose certain parts of the motor.

Referring to the gures in detail, I provide casting A, which is ofsuitable form and dimension for use as a cylinder. It has with it,integral or otherwise, a base-plate B,which extends a suitable distanceoutwardly from each end of the cylinder. It has also integral therewiththe housing C, which extends from the body of the casting upwardly,presenting a general arch-like outline when viewed from the side, butwhich rises in companion parts, one on either side, so that there is aspace between for the parts to be described. The top portion of thishousing is prepared to receive a like part of a similar casting, suchtwo parts being illustrated as fastened together on the line Thissimilar casting A has its housing C', which is of the same general formand is made with duplicate parts, as is the housing of the lowercylinder, being likewise suitable for use as a cylinder and both of theparts A and A being properly finished to carry the piston-heads, whichare not shown, but which travel on the inner ends of the piston-rods Dand D. It will thus be plain that the type of engine whichI represent isthat known as the center-explosion, wherein two pistons in two cylinders-are forced outwardly by a center explosion between them. I do not,however, show in this application the particular igniting device, assuch is well known and can be applied by one skilled in this art.

As before stated, the housings O and C are provided with finishedsurfaces, so that one housing can be brought snugly against the other tohold one piston above the other,'as illustrated here. The two housingsare then secured by bolts and nuts, (illustrated at c c.) On the lowercasting I provide integral lugs a, and on the upper housing I provideintegral lugs a. The lower lugs are tapped to receive the threaded boltsE, and near the lower ends of which are the nuts e. The upper lugs o arebored or tapped to receive the upper ends of the bolts E', which aresecured therein by nuts e. By this arrangement I assist in firmlyholding the upper and lower castings A and A in an exactly correctposition, and I can adjust that position so that the operating partswill work smoothly and can take up any looseness in the connection inthe housing and provide for any adjustment which may be made necessaryafter the machine has been used and still hold the cylin- IOO ders andhousings as firmly together as though they were integral.

From the upper cylinder I extend horizontal arms F', which are bolted atf' onto the cylinder and are curved at their outer eX- tremity to carrythe wheels f, which are made with a concave periphery to support theouter ends of the piston-rods D' in their play. From the lower cylinderI likewise extend horizontal arms F, which may be integral with orbolted to the casting A in the manner of arms F' and which carry ontheir oute1 end similar wheels f, employed for similar purpose. Ofcourse the standards F and F' may be integral or otherwise with A andA', and the base B may be integral or otherwise with the casting A,though F and F' are preferably not integral withA and A', so that theycan be'removed and the pistons readily drawn out. On the piston-rods D',I secure thel piston-rod arms G', and on the piston-rods D, I securethepiston-rod arms G, the free ends of those piston-rod arms located at oneend or the other of the cylinders being brought together and secured bybolts g and g'. The ends of these piston-rod arms are made to supportthe ends of the crank-arms H in ordinary bearings, except that I causethe end of each piston-rod arm to overlap the end of the otherpiston-rod arm in its pair, so that by the bolts securingthem I can takeup any wear and make at any time the necessary adjustment for the properand free play of all the parts. rIhe pistonrod arms .G and G' may,however, be made integral with a longitudinal slot extending upward anddownward from the bearing of the crank-arm H, in which case I stillemploy the bolts g and g'.

At y I illustrate one manner of holding the crank-arm on the piston-rodarm by an adjustable collar.

The housings C and C' are fashioned at their contiguous edges to furnisha bearing for the main shaft I, which is supported on each side of theengine by the housings and which has the cranks t' c'. About one end ofthe crank-shaft I provide pinion J, which engages the toothed wheels Kand K', which are 'seated on the shafts 7c and 7c'. On the shaft I isalso seated the balance-wheel L, which, however, in Fig. l is shown inbroken lines. On each crank is mounted one end of each crank-arm H, theother end being, as stated, supported or connected to the piston -rodarms. The cylinders and other parts may of /course be duplicated asdesired.

The toothed wheels or gears K and K' are employed for actuating thevalves and other parts connected with the feeding and igniting devices;but Ido not here disclose the particular means I employ, as familiarforms and parts can be used for'such purposes.

I provide a casing to inclose parts of the motor whereby it is selfoiling and clean. It

is comprised of two parts X, the lower` of which is of such form as toinclose the lower piston-rods, the main shaft, and the crank-arms.Around its upper edge it has inward corrugated line on which the upperpart of theY l. In a motor, a combination of the series of cylindersadjustably secured to each other, one being intregal with the base andthe others provided with independent adjustable connections therewith,each provided with piston heads and rods in cooperative attachment to amain shaft, substantially as described.

2. In a motor, cylinders provided with integral housings, integral lugsthereon, means for connecting the cylinders and their housings by boltsthrough the housings and by bolts connecting the integral lugs, pistonsand piston-rods, piston-rod arms uniting the several piston-rods,crank-arms connecting the piston-rod arms with a main shaft, incombination, substantially as described.

3. In a motor, a series of cylinders provided with integral housings,means connecting the cylinders adjustably by connections between thehousings, a main shaft, pistons and piston-rods, operative means forvconnecting the several piston-rods with the main shaft, in combination,substantially as described.

4. Ina motor, cylinders, pistons and pistonrods, arms connecting thepiston-rods, arms provided with wheels supporting the outer ends of thepiston-rods, operative connections between the piston-.rods and the mainshaft, in combination, substantially as described. l

5.v In a motor, a series of cylinders provided with pistons andpiston-rods and rigid arms bearing antifriction-supports for the outerends of the 'piston-rods in their operation, castings integral with thecylinders by which the same may be adjusted and rigidly united,operative connections between the several piston-rods and a main shaft,gears connected with the main shaft for operating the valves, incombination, substantially as described.

6. In a motor, a series of cylinders provided with pistons andpiston-rods and arms supporting the outer ends of the piston-rods in theaxis of the cylinder, castings integral with the cylinders by` which thesame may be united in proper position, operative connections between theseveral piston-rods and a main shaft, bolts connecting the cylinderswhereby the same may be secured in adjustment, gears connected with themain shaft for operating the Ata eIshow` IOO IIO

IZO

valves, in combination, substantially as described.

7. In a motor, a series of cylinders, adjustable connections between thesame and with the base whereby they are united in fixed adjustment,support-s connecte-d with the cylinders for carrying the outer ends ofthe pistonrods, operative connections between the piston-rods and a mainshaft comprising rigid arms secured to the piston-rods and to each otherand crank-arms connected with said arms and a main shaft, a main shaft,in combination, substantially as described.

8. In a motor, a cylinder, housings integral therewith supporting a mainshaft, a main shaft, pistons and piston-rods, operative connectionbetween the pistons and the shaft, a casing inclosing the operativeparts whereby the oil-supply for the operating parts may be continuouslydispersed thereon, and within the casing, the said casing comprising anupper and a lower part the former slipping within the latter andsupported on a corrugation in the latter, in combination, substantiallyas described.

9. In a motor, a series of cylinders, integral housings and lugsthereon, bolts securing the cylinders by the housings and the lugs,pistons and piston-rods, operative connections between the piston-rodsand a shaft, a shaft supported in the housings, a casing inclosing theoperative parts of the motor whereby the same may be operated in acontinuous supply of oil, the said casing comprising an upper and alower part the former being' supported in the latter upon a corrugatedrim provided in the latter, in combination, substantially as described.

l0. A motor having a plurality of cylinders with pistons and piston-rodstherein, a shaft having two cranks to which all the piston-rods areconnected,crankarms and piston-rod arms providing connection between thepiston-rods and the cranks, the piston-rod arms having common bearingson their adjacent crankarms, in combination, substantially as described.

l1. A motor having a plurality of cylinders with pistons and piston-rodstherein, a shaft having two cranks to which all the piston-rods areconnected,crank-arms and piston-rod arms providing connection betweenthe piston-rods Vand the cranks, the piston-rod arms having a commonbearing on the adjacent crank-arms and being rigidly secured to thepiston-rods, a series of gears on the shaft whereby the valves of theengine are operated, in combination, substantially as described.

l2. A motor provided with cylinders, pistons and piston-rods, a mainshaft provided with two cranks, piston-rod arms rigidly connecting thepiston-rods and having a united bearing on a crank-arm, a crank-armextending from such bearing to one of the cranks, and duplicated for theother crank, in combination, substantially as described.

'13. A motor provided with cylinders, pistons and piston-rods, a mainshaft provided with two cranks, piston-rod arms rigidly adjustablymounted on the piston-rods and at the other end journaled in acrank-arm, a crank-arm extending from such bearing one to each of thecranks, arms mounted on the cylinders provided withantifriction-supports for the outer ends of the piston-rods, incombination, substantially as described.

In testimony whereof I afliX my signature in presence of two witnesses.

HERMAN W. MARTIN. I/Vitnesses E. T. DE GIORGI, L. R. PRATT.

